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Heavy Duty Security Chain Lock with Padlock, 43 Inch 8mm Manganese Steel Chain, Anti-Rust & Anti-Theft - for Bike, Scooter, Motorcycle, Door, Gate, Fence

  • Based on 48 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Aug 17 – Aug 25
Order within 13 hours and 51 minutes
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Features

  • High-hardness stainless steel material, durable and rust-resistant: bicycle chain lock is made of high-quality stainless steel, which has strong cutting resistance, high hardness and corrosion resistance, and outstanding safety and durability
  • All-welding technology, strong anti-damage: the chain is processed by all-welding technology, with tight and stable structure and excellent anti-pry performance; It can resist the damage of common anti-theft tools, without worrying about being easily cracked, and it is more secure for daily use
  • High-quality waterproof padlock, enhanced anti-theft: with high-quality waterproof padlock, built-in copper lock core, lock beam made of steel, both shear resistance and anti-theft; The padlock has a matte surface and a delicate feel. It is used with a high-toughness chain to further enhance the safety protection level
  • Reasonable size design, carbon steel resistance: heavy chain length is about 43 inches, diameter is 8 mm, and the size is suitable for most lock scenes; The chain body is made of carbon steel, and the whole body is galvanized, which is waterproof and anti-cutting, giving consideration to practicality and durability
  • Multi-scene adaptation and comprehensive protection: suitable for stadiums, gardens, garages, farms, fences, roadsides and other scenes; It can provide safety protection for bicycles, motorcycles, tool boxes, scooters, fitness equipment, outdoor furniture, ladders, power tools and other articles that are difficult to lock, and meet diversified anti-theft requirements

Brand: FYANER


Special Feature: Anti theft


Lock Type: Key Lock


Item dimensions L x W x H: 43 x 1 x 1 inches


Recommended Uses For Product: Securing bicycles, motorcycles, tool boxes, fitness equipment, outdoor furniture, ladders, and power tools See more


Brand Name: FYANER


Recommended Uses For Product: Securing bicycles, motorcycles, tool boxes, fitness equipment, outdoor furniture, ladders, and power tools


Number of Pieces: 1


Included Components: Chain, Lock


Model Number: FYANER-01


UPC: 607602291760


Model Name: FYANER


Manufacturer: FYANER


Unit Count: 1.0 Count


Manufacturer Part Number: FYANER-01


Additional Features: Anti theft


Lock Type: Key Lock


Style Name: alloy steel


Color: Black


Item Dimensions: 43 x 1 x 1 inches


Item Weight: 1.88 Kilograms


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Aug 17 – Aug 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Lock and Chain
As described
Reviewed in the United States on July 3, 2026 by Amazon Customer

  • Muy buena calidad
tal cual como está en la foto y me llegó muy rápido
Reviewed in the United States on August 24, 2025 by Pedro Garcia

  • Great
Nice firm and steady. Turned out better than expected
Reviewed in the United States on August 24, 2025 by Will Wynn

  • Great quickie chain for short trips
This thing doesn’t mess around. It’s like someone took the concept of “peace of mind” and forged it out of pure menace. From first glance to first use, you can tell it’s designed to keep the riff-raff guessing. This chain is perfect for quick trips into crowded areas—you know, the kind where you leave your bike or scooter for “just five minutes,” and somehow that’s when every shady character within a five-mile radius emerges from the shadows. Not today, Satan. This 8mm thick chain says loud and clear, “move along, find an easier target.” The weight alone lets you know it means business—solid enough to deter, but not so heavy it becomes a chore to carry or loop around your handlebars or under your seat. At home, this thing doubles as backyard security for my gear. I’ve been using it to lock up a bike and a gate out back, and it's been holding firm like a champ. Those quick snatch-and-run attempts that are usually aimed at poorly locked stuff? Nope. They’d have to work at it, make a racket, and risk serious attention. It’s got that visual intimidation factor, too—manganese steel wrapped in a rugged anti-rust cover, with a solid padlock that looks like it could survive a medieval siege. Speaking of build quality, this chain is no-nonsense heavy-duty. The welds are clean, the links don’t flex or twist in sketchy ways, and the protective sleeve keeps it from scratching up whatever you're locking it to. The padlock is thick, tight-fitting, and built to resist tampering—no cheap parts or flimsy shackle here. Everything about this setup screams durability. And the value? For what you’re getting—tough chain, legit lock, solid length—this is a budget-friendly fortress kit. Other setups with this kind of toughness can cost double or more. But this one strikes the sweet spot: tough enough to trust, affordable enough to buy without crying ... show more
Reviewed in the United States on July 30, 2025 by Tom Andersen

  • heavy chain hopefully that is good quality
This heavy-duty security chain lock is an excellent choice for anyone looking for serious protection. The centerpiece of this product is the chain itself—it's made from 8mm manganese steel, which gives it a significant weight and a feeling of immense strength and durability. It feels incredibly solid and well-built, making it a powerful deterrent against theft for bikes, scooters, motorcycles, gates, and more. While I can't speak to the professional grade of the padlock's internal mechanisms, it certainly feels robust and secure. Paired with such a formidable chain, the lock appears to be more than capable of handling its job. The combination of the heavy chain and a solid-looking lock provides great peace of mind. It’s a very practical and reliable security solution that feels like it can hold up against a lot of abuse. If you're prioritizing a strong, heavy chain that will make a potential thief think twice, this product is a fantastic option. ... show more
Reviewed in the United States on October 2, 2025 by Justin C.

  • Manganese steel means it's been hardened.
You probably see a lot of boron hardened steel out there and it's good. Manganese alloy steel is just another type of hardening. I don't know the Manganese % ratio but traditionally it's a lot higher than the boron alloys before making steel too brittle. The chain is definately strong and well made. I inspected all the welds and found all to be good. This chain can lift any motor on your cherry picker say sbc/350 and below. But I haven't tested it on anything heavier. Lifting chains also make great security chains because of their hardness. I think any medium sized bolt cutter is going to have a really tough time getting through this. Hydraulic bolt cutters will get through though. It's a round chain instead of a square so that's a slight detractor for security chains but ever so slight. As for die cutter, angle grinder or torch, well, they're going through this no problem. So just know that's always a possiblity. BUT the one thing I think is not the best is the lock. It's easily defeated through several methods besides cutting. The shackle says hardened but that's about all the security you'll get. If you need a set up with a lock included, this is for you to buy. If you want the best set up, use a better lock with this chain and that will be about the best way to use the chain. ... show more
Reviewed in the United States on July 19, 2025 by TK421

  • It’s heavy duty and worth it.
Honestly this is a pretty heavy duty chain, it’s of great quality and gives me peace of mind when it comes to the security of my EBike. It’s easy and functional. It is a little on the heavier side but it shows that it will take a little more getting into if someone even thought about taking whatever you have locked. I’m not sure about how it holds up in different weather as I usually ride when it’s nice but over all, it does what it’s suppose to. It will have some black transfer but there is a piece of paper explaining why that happens and what to do! I wish it was longer but I over all cannot complain. ... show more
Reviewed in the United States on August 28, 2025 by Stacia

  • Best lock ever. Very sturdy and heavy
I got this for the lock alone. And by itself it was well worth the effort. I needed a good lock for a cabinet that we have outside. It houses some fairly valuable stuff and we can't have any riff-raff getting into it. This lock feels like it could just about withstand a nuclear blast. It comes with five keys and they all work beautifully. The lock was smooth and easy to use. Very functional and very sturdy. The chain that came with it is a very thick chain and I don't think anybody would have an easy time cutting through it to steal your bike. But I haven't put it to the test. I just really needed the lock and it is wonderful. It's not a combination lock so don't lose the key because I don't know how you would ever get it off fortunately it comes with five keys. ... show more
Reviewed in the United States on July 25, 2025 by Karl.McKarlson

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